94 lines
3.2 KiB
Java
94 lines
3.2 KiB
Java
/*
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* Copyright (c) 2002, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4756178
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* @summary SpringLayout:applyDefaults() discards size information when right-aligning.
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* @key headful
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*/
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import java.awt.Dimension;
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import java.awt.Robot;
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import javax.swing.JButton;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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import javax.swing.Spring;
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import javax.swing.SpringLayout;
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import javax.swing.SwingUtilities;
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public class bug4756178 {
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static JFrame fr;
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static JButton bt;
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static volatile Dimension buttonPreferredSize;
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static volatile Dimension actualSize;
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public static void main(String[] args) throws Exception {
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try {
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SwingUtilities.invokeAndWait(() -> {
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fr = new JFrame("bug4756178");
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JPanel p = (JPanel) fr.getContentPane();
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SpringLayout layout = new SpringLayout();
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p.setLayout(layout);
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SpringLayout.Constraints cc = new SpringLayout.Constraints();
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cc.setConstraint("East",
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Spring.sum(Spring.constant(-20),
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layout.getConstraint("East", p)));
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cc.setConstraint("South",
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Spring.sum(Spring.constant(-20),
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layout.getConstraint("South", p)));
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bt = new JButton();
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buttonPreferredSize = new Dimension(20, 20);
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bt.setPreferredSize(buttonPreferredSize);
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p.add(bt, cc);
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fr.setSize(200, 200);
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fr.setLocationRelativeTo(null);
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fr.setVisible(true);
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});
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Robot robot = new Robot();
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robot.waitForIdle();
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robot.delay(1000);
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SwingUtilities.invokeAndWait(() -> {
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actualSize = bt.getSize();
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});
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if (!buttonPreferredSize.equals(actualSize)) {
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throw new RuntimeException("Button size is " + actualSize +
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", should be " + buttonPreferredSize);
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}
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} finally {
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SwingUtilities.invokeAndWait(() -> {
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if (fr != null) {
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fr.dispose();
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}
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});
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}
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}
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}
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